A little bit of mis information
This time maybe a little smart ass. Anyone who has single handed offshore, and has an auto pilot has used it. The don't use the auto pilot when single handing isn't even a viable answer when day sailing. You have to pursue normal bodily functions, such as water, food and bath room. Matter of fact, it is more than a little difficult to not use the auto pilot. My normal practice when single handing is to never sleep at night, only during daylight hours. I always have the radar on, with the alarm set. When I sleep during the day, and only then in the cockpit, I am tethered in. I would consider an answer appropriate to not use an auto pilot when in tight quarters, when near a lee shore, or any of several other scenarios. But to say don't use an auto pilot when single handing is not good advice.